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STM32F101X4 bảng dữ liệu(PDF) 69 Page - STMicroelectronics

tên linh kiện STM32F101X4
Giải thích chi tiết về linh kiện  Low-density access line, ARM®-based 32 bit MCU with 16 or 32 KB Flash, 5 timers, ADC and 4 communication interfaces
PDF  87 Pages
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nhà sản xuất  STMICROELECTRONICS [STMicroelectronics]
Trang chủ  http://www.st.com
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STM32F101X4 bảng dữ liệu(HTML) 69 Page - STMicroelectronics

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STM32F101x4, STM32F101x6
Electrical characteristics
86
Figure 33. Typical connection diagram using the ADC
1. Refer to Table 41 for the values of RAIN, RADC and CADC.
2. Cparasitic represents the capacitance of the PCB (dependent on soldering and PCB layout quality) plus the
pad capacitance (roughly 7 pF). A high Cparasitic value will downgrade conversion accuracy. To remedy
this, fADC should be reduced.
General PCB design guidelines
Power supply decoupling should be performed as shown in Figure 34. The 10 nF capacitors
should be ceramic (good quality). They should be placed them as close as possible to the
chip.
Figure 34. Power supply and reference decoupling
ai14139d
STM32F10xxx
VDD
AINx
IL±1 µA
0.6 V
VT
RAIN(1)
Cparasitic
VAIN
0.6 V
VT
RADC(1)
CADC(1)
12-bit
converter
Sample and hold ADC
converter
VDDA
STM32F10xx4/6
1 µF // 10 nF
VSSA
ai15498



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